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PHP miscellaneous functions, php miscellaneous functions_PHP tutorial

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PHP miscellaneous functions, php miscellaneous functions

函数

描述

connection_aborted()

检查是否断开客户机。

connection_status()

返回当前的连接状态。

connection_timeout()

在 PHP 4.0.5 中不赞成使用。

constant()

返回一个常量的值。

define()

定义一个常量。

defined()

检查某常量是否存在。

die()

输出一条消息,并退出当前脚本。

eval()

把字符串按照 PHP 代码来计算。

exit()

输出一条消息,并退出当前脚本。

get_browser()

返回用户浏览器的性能。

highlight_file()

对文件进行语法高亮显示。

highlight_string()

对字符串进行语法高亮显示。

ignore_user_abort()

设置与客户机断开是否会终止脚本的执行。

pack()

把数据装入一个二进制字符串。

php_check_syntax()

在 PHP 5.0.5 中不赞成使用。

php_strip_whitespace()

返回已删除 PHP 注释以及空白字符的源代码文件。

show_source()

highlight_file() 的别名。

sleep()

延迟代码执行若干秒。

time_nanosleep()

延迟代码执行若干秒和纳秒。

time_sleep_until()

延迟代码执行指定的时间。

uniqid()

生成唯一的 ID。

unpack()

从二进制字符串对数据进行解包。

usleep()

延迟代码执行若干微秒。

Function
Description
connection_aborted() Check if the client is disconnected.
connection_status() Returns the current connection status.
connection_timeout() is deprecated in PHP 4.0.5.
constant() Returns the value of a constant.
define() Define a constant.
defined() Check whether a constant exists.
die() Output a message and exit the current script.
eval() Calculate the string according to PHP code.
exit() Output a message and exit the current script.
get_browser() Returns the performance of the user's browser.
highlight_file() Syntax highlighting for files.
highlight_string() Syntax highlighting for strings.
ignore_user_abort() Set whether disconnecting from the client will terminate the execution of the script.
pack() Load data into a binary string.
php_check_syntax() is deprecated in PHP 5.0.5.
php_strip_whitespace() Returns the source code file with PHP comments and whitespace characters removed.
show_source() An alias for highlight_file().
sleep() Delay code execution for a few seconds.
time_nanosleep() Delay code execution for a number of seconds and nanoseconds.
time_sleep_until() Delay code execution for the specified time.
uniqid() Generate a unique ID.
unpack() Unpack data from a binary string.
usleep() Delay code execution for a number of microseconds.

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